It will affect the working of the BB8.To fix this , follow the steps :1. Download Arduino Software2. Download both, the code and Pololu library as given in this instructable above.3. Open Arduino software4. In Arduino Software(IDE), select sketch>include library>add .zip library5. Locate the downloaded zip file of Pololu and select it and you're done.

Finally I made my little DrawBot.3D printing was not available at my location,so I used bottle caps as pen holders.Just some changes in the code and now I can make the DrawBot draw anything from patterns to complex drawings!!P.S.- I'll add more images.P.P.S - A video of my bot drawing squares: https://drive.google.com/open?id=0B55UIJdLlC-UaUJYX0MtR0xtbkUI'll be happy to help you too. Just shoot me a mail at : samarsrivastava44@gmail.com